301 Half Hard Stainless Steel

301 Half Hard stainless steel

301 Half Hard Stainless Steel

(AMS 5518) 301-1/2 Hard Tempered Stainless Steel Strip Roll

Our 301 half hard sheets is a high – performance austenitic stainless steel material. It has excellent mechanical properties and dimensional stability due to advanced cold – rolling and heat – treatment processes. It combines good strength and ductility, making it suitable for various industries like automotive, electronics, and machinery for manufacturing parts that require bending, forming, and stretching.

Mechanical Properties:

  • Hardness: Vickers Hardness HV 310–370 (balanced strength and formability).
  • Tensile Strength: ≥930 MPa | Yield Strength: ≥510 MPa.
  • Elongation: ≥10% (supports bending up to 2.5× material thickness for complex shapes).

Chemical Composition:

  • Cr (Chromium): 16.0–18.0% | Ni (Nickel): 6.0–8.0% (enhances corrosion resistance and oxidation stability).
  • C (Carbon): ≤0.15% | Mn (Manganese): ≤2.0% (reduces intergranular corrosion risk).

Typical Applications:

  • Automotive: Exhaust shims, fuel cell seals, and sensor springs.
  • Electronics: EMI shielding, flexible circuit connectors, and micro-switch components (±0.005mm tolerance) .
  • Medical: Surgical tool springs and implantable device parts .
  • Industrial: Conveyor belt fasteners, precision washers, and machinery shims.

Our 301 Half Hard Features 

Why 100+ Customers Trusted Us?

Superior Elasticity & Fatigue Resistance

Our cold-rolled 301 1/2H temper increases tensile strength by 40% compared to annealed 301 strip, perfect for springs, clips, and high-stress parts .

Excellent Surface Quality

Bright annealing treatment gives the foil a smooth, bright surface with good gloss and reflectivity, and minimizes surface defects for a clean appearance.

Precision Thickness Control

Advanced cold - rolling technology achieves minimal thickness deviation, and can produce ultra - thin foils as thin as 0.01mm.

Our Strict Quality Management System

We follow a comprehensive quality management system, covering raw material procurement and production processes. Each batch of products undergoes rigorous testing and control to meet high – quality standards and obtain ISO9001 and ISO14001 certifications.

Thickness Inspection

thickness test

Width Inspection

stainless-steel-strip-width-tolerance-range

Surface Inspection

strip coil surface

Camber Inspection

stainless-steel-strip-camber-allowance

Chemical Testing

chemical test

Tensile Test

Tensile-Testing

Bending Test

Bending Test

Edge Deburred

edge deburred

Narrow Strip Packaging

narrow strip

Strip Coils Packaging

shipping

Why Choose Us

Professional Technical Team

 We have a professional and highly skilled technical team that offers comprehensive technical support and services, including product selection, technical consultation, and solution development, to help customers address various issues during product usage.

Customized Services

We provide customized production for dimensions, materials, and surface treatments based on customer needs.

Fast Delivery

With efficient production and supply chain management, we can quickly deliver products on time.

Who We Are

A prominent manufacturer of precision stainless strip & foils.

Our dedication to continuous improvement has led the quality department to achieve and maintain ISO 9001, MSDS and RoHS certifications.

Learn More About Our Materials

Frequently Asked Questions

Take a look and some of the most common questions. If you can not find the information you need, get in touch.

Full - hard stainless steel strips undergo special heat treatment to achieve maximum tensile and yield strength with minimal elongation, offering high strength but lower ductility. They are suitable for manufacturing components requiring high strength and dimensional stability, such as springs and fasteners.

Half - hard stainless steel strips balance strength and ductility. They maintain good strength while having moderate ductility, making them suitable for parts that require bending, forming, and stretching, such as electronic device brackets and automotive seat belt springs.

Our precision stainless steel strips are widely used in multiple industries, including automotive (for manufacturing engine components, exhaust systems, etc.), electronics (for producing electronic connectors, springs, etc.), machinery manufacturing (for making various mechanical components), medical devices (for manufacturing surgical instruments, implants, etc.), and the chemical industry (for producing corrosion - resistant components like gaskets and reaction vessel linings).

Yes, we provide comprehensive customization services, including but not limited to dimensions (thickness, width, length), material grades, surface treatments (such as bright annealing, fingerprint - resistant treatment, etc.), and processing methods (cut - to - length, slitting, leveling, etc.), to meet customers' specific application requirements.

Our precision stainless steel strips have high dimensional accuracy, with thickness tolerance +/- 0.005 mm and width tolerances controlled within +/- 0.1 mm. We ensure this through advanced cold - rolling technology, high - precision measurement equipment, and strict quality control processes during production.

We have a comprehensive quality management system covering raw material procurement, production processes, and product testing. Each batch of products undergoes rigorous inspections and tests, including dimensional measurements, mechanical property tests, and corrosion resistance evaluations, to ensure quality and stability.

Our precision stainless steel strips are packaged in various forms, such as coils and sheets. We use professional packaging materials and methods to prevent damage during transportation. For example, coils are wrapped with moisture - proof paper and secured with strapping bands, while sheets are stacked neatly and protected with corner guards to avoid edge damage.

Our products hold various certifications, such as ISO 9001:2015, RoHs, MSDS ensuring compliance with international standards and regulations.

We mainly offer Austenitic 301, 304, and 316L precision stainless steel strips, slit coils, cut-to-length sheets and foils.

We strive to meet the needs of all customers. Although we encourage customers to purchase in bulk to enjoy more favorable prices and services, we also accommodate small - order requirements with MOQ of 100 kg. For specific minimum order quantities, please contact our sales team for detailed information.

We have an efficient production and supply chain management system and can deliver products quickly. The delivery period depends on the order quantity and product specifications. For regular products, we typically deliver within 7-10 working days. For customized products, the delivery period is negotiated with the customer based on specific requirements.

Yes, we highly value customer satisfaction and provide comprehensive after - sales support and services. If customers encounter any quality issues or usage problems with our products, they can promptly contact our after - sales team. We will respond quickly and offer solutions, such as product replacement, repair, or technical guidance.

Precision stainless steel strips should be stored in a dry, ventilated warehouse, away from corrosive substances and environments. They should be placed on pallets to avoid direct contact with the ground and prevent moisture and contamination. Proper storage ensures product quality during storage.

Contact Us

You are welcome to reach out to our team for any specifications regarding the stainless steel strip and foil materials you require.

Our Location:

No.15, San Zhong Jin Niu Road, Qingxi Town
Dongguan City, Guangdong Province, China

Email: sales@alterstainless.com

Tel: +86 796 813 1167

Get A Quote Now!

Send us your inquiry and our team will respond within 7 hours.